The traditional approve → transfer → pay flow is fragmented, slow, and confusing. Q402 replaces it with a single, intent-driven signature. One action triggers execution. No extra steps. No friction.
It’s gasless for users, thanks to facilitators covering transaction costs. It’s Permit2-compatible, so no complicated token upgrades. And it’s policy-aware — enabling spend limits, expirations, and whitelists directly within the payment logic. That means smarter control, built into the protocol itself.
But the real strength of Q402 is trust.
Every transaction is fully verifiable on-chain, complete with receipts and logs. Transparent. Auditable. Secure.
For developers, the modular architecture makes integration seamless: • Core SDK for creating and signing Q402 payment headers
• Facilitator layer for delegated execution and settlement
• Middleware for instant validation
• Open-source specs and contracts for flexible deployment
Q402 is more than a payment mechanism.
It’s the execution layer powering QuackAI’s Agent Economy — enabling AI agents, automated governance, and seamless on-chain coordination.
This is what Web3 payments evolve into:
Intent-based. Intelligent. Frictionless.